Researchers from IBM, RWTH Aachen University, and Quantum Elements have set a new record in quantum computing by achieving higher qubit fidelity for longer periods using a novel hybrid protocol.
This breakthrough, utilizing 127-qubit IBM processors, enhances the ability to run complex quantum algorithms. They developed normalizer dynamical decoupling (NDD) to mitigate 'ZZ crosstalk' noise.
[NDD] suppressed errors before they occurred, maintaining 98.05% peak encoding fidelity and 84.87% fidelity after 55 microseconds, compared to earlier peaks of around 79.5% and 93.7%.
This development is seen as a significant step toward practical quantum computing applications.